Thanks to all for the helpful input. Did a bunch of auditioning over the past couple weeks. To my ear McIntosh takes the prize, regardless of price. It's just icing on the cake that it's a much better value proposition here in the US. I was also wrong about build quality. The knobs on Luxman do feel sturdier, but it's because they are traditional wiper-pots — the Mc knobs use an electronically switched resistor ladder, which is more accurate and durable, even if it doesn't feel as luxurious. MA8900 is on order.